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Title: Magnetic linear dichroism in photoemission from Fe on Cu84Al16(100) and Cu3Au(100)
Title of periodic: Journal of Magnetism and Magnetic Materials Amsterdam
Authors: Macedo, Waldemar Augusto de Almeida
Sirotti, F.
Schatz, A.
Guarisco, D.
Panaccione, G.
Roosi, G.
Affiliation: Centro de Desenvolvimento da Tecnologia Nuclear/CDTN, Belo Horizonte, MG, Brasil
Laboratoire pour Utilisation du Rayonnement Electromanetique CNRS, CEA, MESR, Orsay, Francel
Gerhard-Mercator-Universitaet Duisburg, Duisburg, Germany, F.R.
Eidgenossiche Technische Hochschule, Zurick, Switerzerland
Laboratoire pour l'Utilisation du Rayonnement Electromagnetique, CNRS, CEA, MESR, Orsay, France
Laboratoire pour l'Utilisation du Rayonnement Electromagnetique, CNRS, CEA, MESR, Orsay, France
Issue Date: 1998
Keywords: Surfaces;magnetism;dichroism;photoemission;thin films
Abstract: We have investigated the magnetic properties of monolayers of FCC Fe grown epitaxialy on Cu84A116(1 0 0) and on ordered Cu3Au(1 0 0), substrates that present lattice parameters 1 per centum and 3.7 per centum bigger than pure Cu. The magnetic measurements were carried out by linear magnetic dichroism in the angular distribution of photoelectrons (LMDAD), using linearly polarized synchrotron radiation. The LMDAD measurements of the Fe 3p core levels show that strating from 2.5 monolayers (ML) for Fe/Cu84A116(1 0 0) and from 4 ML for Fe/Cu3Au(1 0 0) these FCC Fe films present in-plane ferromagnetism. The 9 per centum inclrease of the magnetic splitting of the Fe 3p LMDAD peak-ti peak asymmetry measured for Fe/Cu3Au(1 0 0) suggests an increase of the Fe magnetic moment with increasing volume of the high-spin FCC Fe films.
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